Forget about Barack Obama’s ultra-liberal policies — should Americans now be worried about the mental health of the current occupant of the White House? That was the alarming suggestion Fox Business Network viewers heard Tuesday evening.

Talking about the bewildering decision to trade five “high risk” Taliban leaders for Army Sgt. Bowe Bergdahl on Lou Dobbs Tonight, psychology expert Dr. Gina Loudon said she has become “very, very concerned” that President Obama has become “irrational, erratic and perhaps not exactly what we might want to deem sane.” [Video and transcript after the jump.]

Host Lou Dobbs asked Loudon about the case of U.S. Marine Sgt. Andrew Tahmooressi, who is currently imprisoned in Mexico after accidentally crossing the border March 31 with guns in his vehicle, a case which seems much less urgent to the Obama administration than that of Bowe Bergdahl.

But instead of talking about the Tahmooressi case, Loudon made the much more disturbing observation that Obama is exhibiting signs of “irrational” behavior: